Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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A Study on the Synthesis and Properties of (Ba,Pb)$TiO_3$Powder by Modified Oxalate Process

Modified Oxalate Process에 의한 (Ba,Pb)$TiO_3$ 분말합성 및 특성에 관한 연구

  • Published : 1996.07.01
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Abstract

In this study (Ba1-xPbx)TiO3 was synthesized by modified oxalate process in order to prevent vaporization of PbO through low temperature synthesis climinate Cl ion reproducibly substitute Pb for by and uniformly distribute ion (Ba1-xPbx)TiO3 was synthesized by coprecipitation of lead acetate barium acetate and ammonium titanyl oxalate have been used as starting materials. The substitution of Pb for Ba was reproducibly possible synthetic temperature of perovskite structure becomes lowed as the Pb concentration increases and fine partic-les (specific surface are :7.2 cm2/g) were obtained, BaTiO3 powders calcined at 90$0^{\circ}C$ for 3 hours were cubic from in XRD analysis and as Pb content was increases evident split of tetragonal peaks could be observed The optimum conditions to synthesize (Ba,Pb)TiO3 powder are the followings ; synthesis temperature (5$^{\circ}C$)

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References

  1. セラミソス 誘電體工學 (第3版) 岡崎淸
  2. J. Am. Ceram. Soc. v.69 no.8 A New Phenomenon in Barium-lead Titanate Ceramics with PTC of Resistivity M. Kuwabara;H. Nagata
  3. J. Am. Ceram. Soc. v.65 no.10 Influence of Interdiffusion on Solid Solution Formation and Sintering in the System BaTiO₃-SrTiO₃ D. Kolar;M. Trontelj;Z. Stadler
  4. J. Am. Ceram. Soc. v.71 no.2 Instability of the Characteristics of the Positive Temperature Coefficient of Resisivity in High-Curie-Point Barium-Lead titanate Ceramics and Their Grain Structure M. Kuwabara;K. Nakao;K. Okazaki
  5. J Kor. Ceram. Soc. v.31 no.11 Effect of the Calcination Conditions for the Synthesized BaTiO₃Powder and the Sintered PTC Ceramics by Oxalic Acid Method Mi-Jai Lee;Sun-A Hwang;Byung-Hyun Choi
  6. エレクトロニク·セラミクス v.104 高純度微粒子酸化物 芦村 隆士
  7. エレクトロニク·セラミクス v.5 高溫用 PTCヒ-タ 複本隆光
  8. Yohyo-Kyokaishi v.92 no.1 Thermal Decomposition of Barium Titanium(Ⅳ) bis (oxalate) oxide and the Formation of Barium Titanate K. Ilzumi
  9. J. Am. Ceram. Soc. v.46 no.12 Thermal Decomposition of Some Substituted Barium titanyl Oxalates and Its Effect on the Semiconducting Properties of the Doped Materials P.K. Gallagher;F. Schrey
  10. J. Am. Ceram. Soc. v.48 no.2 Thermal analysis of some Barium and Stromtium Titanyl Oxalates P.K.Gallagher;J.Thomson
  11. J Res. NBS v.56 no.5 Preparation of Barium Titanyl Oxalate Tetrahydrate for Conversion to Barium Titanate of High Purity W. Stanley Clabaugh;E.M. Swiggard;R. Gilchrist
  12. Ceramics International v.11 no.1 Preparation of Barium Titanate by Oxalate Method in Ethanol Solution H. Yamamura;A. Watanabe;S. Shirasaki;Y. Moriyoshi;M. Tanada